Table 2 Signal-to-noise ratio findings for lumbosacral nerves

L5 nerve (n = 22)

Abnormal

42.7 (± 11.2)*

28.3 (± 10.6)*

21.9 (± 8.4)

Normal

30.1 (± 9.8)

21.6 (± 9.3)

16 (± 5.4)

S1 nerve (n = 19)

Abnormal

53.4 (± 28.8)*

38.7 (± 18.5)*

30.2 (± 18)*

Normal

37.8 (± 20.5)

27 (± 15.6)

21.4 (± 16.4)

S2 nerve (n = 7)

Abnormal

71.3 (± 33.3)

55.3 (± 34.3)

45.2 (± 32.1)

Normal

58.5 (± 27.9)

42 (± 24.8)

31.1 (± 20.9)

Sciatic nerve (n = 4)

Abnormal

51.5 (± 7.9)

31.7 (± 5.1)

26.4 (± 2.6)

Normal

31.8 (± 3.6)

21.5 (± 4.4)

16.4 (± 1.5)